#A3333B#A3333B

#A3333B is a mid, vivid red. Relative luminance 0.105; OKLCH L 48.9% C 0.147 H 20.5°. Best body text is #FFFFFF at 6.79:1 contrast (WCAG AA passes).

Color values

HEX	#A3333B
RGB	rgb(163, 51, 59)
HSL	hsl(356, 52%, 42%)
HSV	hsv(356, 69%, 64%)
CMYK	cmyk(0%, 68.7%, 63.8%, 36.1%)
CIE-LAB	lab(38.68, 46.47, 21.44)
CIE-LCH	lch(38.68, 51.18, 24.76°)
OKLab	oklab(48.94% 0.1377 0.0514)
OKLCH	oklch(48.94% 0.147 20.5)
XYZ	xyz(17.0792, 10.4724, 5.2588)
Luminance	0.1047 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A3333B #33A39B

analogous

#A33373 #A3333B #A36333

triadic

#A3333B #3BA333 #333BA3

tetradic

#A3333B #73A333 #33A39B #6333A3

square

#A3333B #73A333 #33A39B #6333A3

split-complementary

#A3333B #33A363 #3373A3

monochromatic

#461619 #74242A #A3333B #C74C55 #D67B81

Accessibility & contrast

On white

6.79

#A3333B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.09

#A3333B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A3333B

6.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A3333B	#FFFFFF	#000000	##FFFFFF
##A3333B	1.00	6.79	3.09	6.79
#FFFFFF	6.79	1.00	21.00	1.00
#000000	3.09	21.00	1.00	21.00
##FFFFFF	6.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#514C3A

Deuteranopia (green-blind)

#6D6438

Tritanopia (blue-blind)

#B31737

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #a3333b;
/* rgb */ color: rgb(163, 51, 59);
/* oklch */ color: oklch(48.9% 0.147 20.5);

Tailwind

colors: {
  custom: {
    50: '#c57270',
    500: '#a3333b',
    950: '#000000',
  },
}

SCSS

$custom: #a3333b;
$custom-light: #c57270;
$custom-dark: #000000;

JSON

{
  "hex": "#a3333b",
  "rgb": {
    "r": 163,
    "g": 51,
    "b": 59
  },
  "hsl": {
    "h": 355.714,
    "s": 52.336,
    "l": 41.961
  },
  "oklch": {
    "l": 0.48935,
    "c": 0.14699,
    "h": 20.5
  },
  "luminance": 0.1047
}

Semantic roles & 50–950 ramp

primary

#A3333B

secondary

#73BEB9

accent

#DCD14C

background

#FCF7F6

surface

#F9EDEC

border

#D2C8C7

text

#140807

muted

#827B7A

Preview Lab

Preview with #A3333B

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →